89 static void register_page_bootmem_info_section(unsigned long start_pfn)  in register_page_bootmem_info_section()  argument
95 	if (!pfn_valid(start_pfn))  in register_page_bootmem_info_section()
98 	section_nr = pfn_to_section_nr(start_pfn);  in register_page_bootmem_info_section()
162 static void grow_zone_span(struct zone *zone, unsigned long start_pfn,  in grow_zone_span()  argument
170 	if (start_pfn < zone->zone_start_pfn)  in grow_zone_span()
171 		zone->zone_start_pfn = start_pfn;  in grow_zone_span()
179 static void grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn,  in grow_pgdat_span()  argument
185 	if (start_pfn < pgdat->node_start_pfn)  in grow_pgdat_span()
186 		pgdat->node_start_pfn = start_pfn;  in grow_pgdat_span()
359 static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages,  in online_pages_range()  argument
365 	if (PageReserved(pfn_to_page(start_pfn)))  in online_pages_range()
367 			page = pfn_to_page(start_pfn + i);  in online_pages_range()
385 	arg.start_pfn = pfn;  in online_pages()
450 	unsigned long start_pfn = start >> PAGE_SHIFT;  in hotadd_new_pgdat()  local
461 	free_area_init_node(nid, zones_size, start_pfn, zholes_size);  in hotadd_new_pgdat()
556 int is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)  in is_mem_section_removable()  argument
559 	struct page *page = pfn_to_page(start_pfn);  in is_mem_section_removable()
588 static int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn)  in test_pages_in_a_zone()  argument
594 	for (pfn = start_pfn;  in test_pages_in_a_zone()
638 do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)  in do_migrate_range()  argument
647 	for (pfn = start_pfn; pfn < end_pfn && move_pages > 0; pfn++) {  in do_migrate_range()
701 offline_isolated_pages(unsigned long start_pfn, unsigned long end_pfn)  in offline_isolated_pages()  argument
703 	walk_memory_resource(start_pfn, end_pfn - start_pfn, NULL,  in offline_isolated_pages()
711 check_pages_isolated_cb(unsigned long start_pfn, unsigned long nr_pages,  in check_pages_isolated_cb()  argument
716 	ret = test_pages_isolated(start_pfn, start_pfn + nr_pages);  in check_pages_isolated_cb()
724 check_pages_isolated(unsigned long start_pfn, unsigned long end_pfn)  in check_pages_isolated()  argument
729 	ret = walk_memory_resource(start_pfn, end_pfn - start_pfn, &offlined,  in check_pages_isolated()
736 int offline_pages(unsigned long start_pfn,  in offline_pages()  argument
745 	BUG_ON(start_pfn >= end_pfn);  in offline_pages()
747 	if (!IS_ALIGNED(start_pfn, pageblock_nr_pages))  in offline_pages()
753 	if (!test_pages_in_a_zone(start_pfn, end_pfn))  in offline_pages()
756 	zone = page_zone(pfn_to_page(start_pfn));  in offline_pages()
758 	nr_pages = end_pfn - start_pfn;  in offline_pages()
761 	ret = start_isolate_page_range(start_pfn, end_pfn);  in offline_pages()
765 	arg.start_pfn = start_pfn;  in offline_pages()
776 	pfn = start_pfn;  in offline_pages()
796 	pfn = scan_lru_pages(start_pfn, end_pfn);  in offline_pages()
818 	offlined_pages = check_pages_isolated(start_pfn, end_pfn);  in offline_pages()
826 	offline_isolated_pages(start_pfn, end_pfn);  in offline_pages()
828 	undo_isolate_page_range(start_pfn, end_pfn);  in offline_pages()
843 		start_pfn, end_pfn);  in offline_pages()
846 	undo_isolate_page_range(start_pfn, end_pfn);  in offline_pages()
853 	unsigned long start_pfn, end_pfn;  in remove_memory()  local
855 	start_pfn = PFN_DOWN(start);  in remove_memory()
856 	end_pfn = start_pfn + PFN_DOWN(size);  in remove_memory()
857 	return offline_pages(start_pfn, end_pfn, 120 * HZ);  in remove_memory()